Three Vouchers & Cashback 2021

Updated November 23, 2021
Getting the best mobile, broadband and SIM plan for your home and handsets is easy with Three! Browse our Three vouchers and Three discount codes for extra savings.

£100
OFF
7 uses today

Black Friday Deal: iPhone 13 Deal: Free £100 voucher when you switch plans and 6 months half price

Get the new iPhone 13 and receive a £100 voucher for free! Switch plans today and enjoy monthly fees starting at £31 with a low upfront cost of £29, with 6 months half price.
Get Deal
£100 Off
7 uses today

Black Friday Deal: iPhone 13 Deal: Free £100 voucher when you switch plans and 6 months half price

Get the new iPhone 13 and receive a £100 voucher for free! Switch plans today and enjoy monthly fees starting at £31 with a low upfront cost of £29, with 6 months half price.

50%
OFF
13 uses today

10-50% off select SIM Only plans for existing customers

Find the perfect SIM Only plan for you and receive up to 50% off as an existing Three customer.
50% Off
13 uses today

10-50% off select SIM Only plans for existing customers

Find the perfect SIM Only plan for you and receive up to 50% off as an existing Three customer.

50%
OFF
16 uses today

SIM plans for your phone starting from £7 per month (50% off select plans)

50% Off
16 uses today

SIM plans for your phone starting from £7 per month (50% off select plans)

FROM
£14
6 uses today

Black Friday Deal: Three UK 5G and 4G broadband from as low as £14 a month

Grab this unbelievable low price for broadband this Black Friday at Three! Starting at £14 a month you can sign up for 4G or 5G broadband with unlimited data.
From £14
6 uses today

Black Friday Deal: Three UK 5G and 4G broadband from as low as £14 a month

Grab this unbelievable low price for broadband this Black Friday at Three! Starting at £14 a month you can sign up for 4G or 5G broadband with unlimited data.

50%
OFF
7 uses today

Unlimited data for 50% off with your first 6 months and free gifts with the Three student discount

Check out the student discount at Three and discover unlimited data plans for 50% off with the latest smartphones and free gifts! Register with your university email address today and start saving.
50% Off
7 uses today

Unlimited data for 50% off with your first 6 months and free gifts with the Three student discount

Check out the student discount at Three and discover unlimited data plans for 50% off with the latest smartphones and free gifts! Register with your university email address today and start saving.

£80 OF4
3 uses today

Up to £40 cash reward when you Refer a Friend

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£80 Of4
3 uses today

Up to £40 cash reward when you Refer a Friend

FREE
GIFT
7 uses today

Get a free Chromebook with the 5G Three broadband plan - limited time

When you set up and enjoy a new broadband plan, you will be able to take home a free Samsung Chromebook (worth (£379).
Free Gift
7 uses today

Get a free Chromebook with the 5G Three broadband plan - limited time

When you set up and enjoy a new broadband plan, you will be able to take home a free Samsung Chromebook (worth (£379).

£465
OFF
5 uses today

Take £465 off the Samsung Galaxy S21 plus claim a free £100 voucher when you switch

Enjoy this new Samsung Galaxy with free YouTube Premium. plus claim a free £100 gift card when you switch. You will also enjoy 6 months half price which is from £43 a month.
£465 Off
5 uses today

Take £465 off the Samsung Galaxy S21 plus claim a free £100 voucher when you switch

Enjoy this new Samsung Galaxy with free YouTube Premium. plus claim a free £100 gift card when you switch. You will also enjoy 6 months half price which is from £43 a month.

GIFT CARD
2 uses today

Black Friday Offer - Free £50 gift card when you switch and 6 months half price for the £10/month SIM Only plan

Gift Card
2 uses today

Black Friday Offer - Free £50 gift card when you switch and 6 months half price for the £10/month SIM Only plan

£336
OFF
2 uses today

Black Friday Deal: £336 off and 6 months half price with the new Samsung Galaxy Z Flip3 5G

For £28 a month for the first 6 months (savings of £336), and with the 100GB plan you can get the Samsung Galaxy Flip3 during this Black Friday sale at Three.
£336 Off
2 uses today

Black Friday Deal: £336 off and 6 months half price with the new Samsung Galaxy Z Flip3 5G

For £28 a month for the first 6 months (savings of £336), and with the 100GB plan you can get the Samsung Galaxy Flip3 during this Black Friday sale at Three.

£465
OFF
2 uses today

Samsung Phone Deals: 6 months half price with savings of up to £465 with this Black Friday offer

£465 Off
2 uses today

Samsung Phone Deals: 6 months half price with savings of up to £465 with this Black Friday offer

50%
OFF
3 uses today

SIM Only plans with unlimited data for £10/month for the first 6 months (50% off)

Pay a small fee of £10 per month with these Three SIM Only plans! Save 50% off now with a 24-month Advanced plan.
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50% Off
3 uses today

SIM Only plans with unlimited data for £10/month for the first 6 months (50% off)

Pay a small fee of £10 per month with these Three SIM Only plans! Save 50% off now with a 24-month Advanced plan.

FREE
GIFT
3 uses today

Free TV or Google home bundle with Three UK broadband plans

Score a 32" Toshiba TV (worth £239) when you purchase the 5G hub or get a free Google Home Bundle with the 4G hub or 4G Plus hub. Sign up for a plan with zero upfront costs from £22 a month!
Free Gift
3 uses today

Free TV or Google home bundle with Three UK broadband plans

Score a 32" Toshiba TV (worth £239) when you purchase the 5G hub or get a free Google Home Bundle with the 4G hub or 4G Plus hub. Sign up for a plan with zero upfront costs from £22 a month!

4X DATA
3 uses today

Up to 4X the data on select tablets

4X Data
3 uses today

Up to 4X the data on select tablets

£72
OFF
3 uses today

Exclusive Customer Offers: Up to £72 off select mobile devices

£72 Off
3 uses today

Exclusive Customer Offers: Up to £72 off select mobile devices

£6
4 uses today

SIM Only Special - £6 a month for 1GB of data

Get Deal
£6
4 uses today

SIM Only Special - £6 a month for 1GB of data

£465
OFF
3 uses today

6 months half price and more when you switch with these Black Friday phone deal

Enjoy multiple benefits to switching when you take advantage of this Three Black Friday offer. Enjoy 4 free months of YouTube Premium, £465 off, and 6 months half price.
£465 Off
3 uses today

6 months half price and more when you switch with these Black Friday phone deal

Enjoy multiple benefits to switching when you take advantage of this Three Black Friday offer. Enjoy 4 free months of YouTube Premium, £465 off, and 6 months half price.

50%
OFF
3 uses today

50% off your monthly payment with the iPhone 13 or iPhone 13 Pro for 6 months when you switch

Looking to purchase the new iPhone 13 or iPhone 13 Pro? This Three offer is just for you! Take 50% off your monthly payments for 6-months when you switch plans
Get Deal
50% Off
3 uses today

50% off your monthly payment with the iPhone 13 or iPhone 13 Pro for 6 months when you switch

Looking to purchase the new iPhone 13 or iPhone 13 Pro? This Three offer is just for you! Take 50% off your monthly payments for 6-months when you switch plans

FROM
£11
3 uses today

Existing Customers Deal: Phone and tablet plans for as low as £11/month

From £11
3 uses today

Existing Customers Deal: Phone and tablet plans for as low as £11/month

FREE
SUBSCRIPTION
2 uses today

3 months of Apple TV for free with any iPhone, iPad, or Home Broadband purchase

Free Subscription
2 uses today

3 months of Apple TV for free with any iPhone, iPad, or Home Broadband purchase

FREE
UPGRADE
2 uses today

200MB of free data every month with the free Data Reward SIM card

Free Upgrade
2 uses today

200MB of free data every month with the free Data Reward SIM card

FROM
£19
2 uses today

Mobile UK phone deals with prices from £19 per month

Need a new phone? Visit this page and find the perfect phone for you! Discover deals on Samsung, iPhones, and more starting from £19 a month!
From £19
2 uses today

Mobile UK phone deals with prices from £19 per month

Need a new phone? Visit this page and find the perfect phone for you! Discover deals on Samsung, iPhones, and more starting from £19 a month!

FREE
SIM
4 uses today

Get a free Pay As You Go SIM

Do you prefer a monthly basis instead of a set contract? Order your free Three Pay As You Go SIM today and recharge at your own pace!
Free SIM
4 uses today

Get a free Pay As You Go SIM

Do you prefer a monthly basis instead of a set contract? Order your free Three Pay As You Go SIM today and recharge at your own pace!

FROM
£15
2 uses today

Accessory Deals: Screen protectors, cases, chords and more starting at £15

From £15
2 uses today

Accessory Deals: Screen protectors, cases, chords and more starting at £15

£1
OFF
2 uses today

Over £1 in savings per month with the Price Promise

If you find a better deal for your business contract, Three will beat it by at least £1 a month with the Price Promise!
£1 Off
2 uses today

Over £1 in savings per month with the Price Promise

If you find a better deal for your business contract, Three will beat it by at least £1 a month with the Price Promise!

FROM
£13
2 uses today

Mobile Broadband SIM plans from £13 a month

From £13
2 uses today

Mobile Broadband SIM plans from £13 a month

FREE
APP
2 uses today

Download the Three UK app for free

Free App
2 uses today

Download the Three UK app for free

Popular Expired Three Discount Codes
50% Off
2 uses today

Extra 50% off SIM Only plan with unlimited data fo the first 6 months

Save half price right now with this Three SIM Only offer!
Free Delivery
2 uses today

Free next day delivery on all devices - phones, tablets, and more

£12 Off
2 uses today

£12 off the Samsung Galaxy S20 monthly plan (now £30)

Pick up the Samsung Galaxy S20 and save £12 with the 30GB monthly plan (which was £12).

Popular Three Voucher Codes

Vouchers and DealsValueDiscount TypeStatus
Three SIM deals for over 10% off10% OffOnline DealOngoing
Free delivery with this Three discount codeFree DeliveryOnline VoucherExpired
Three plans for up to 10% off10% OffOnline DealOngoing


Tons Of Easy Savings

Looking for an additional plan or device as an existing customer? They have plenty of awesome Three deals to help you out. Add an extra SIM or device to your existing account or complete a Three upgrade to a shiny new phone in just a few clicks by browsing their “Offers” page online. We’ll also post all of the best Three vouchers and upcoming Three sales right here so you don’t miss out!

If you’re a student on a tight budget, you’re in luck. With their exclusive Three discounts for students, you can get your next phone, SIM, or broadband purchase for less. Just enter your university email address to access a wide range of specials just for students. Whether you’re looking for a 1-month or 12-month SIM plan, they’re undoubtedly the best choice for you.

Downloading Discounts

With the Three app for iOS and Android, anything is possible. From tracking your latest bill and usage to completing your next Three top-up, in just a few taps, the whole world can be yours. Now you can manage your account on the move; some features include viewing your Pay As You Go credit balance, bill breakdowns, check your upgrade eligibility, and you can even browse the latest Three UK deals to see what’s new. Plus, if you need support from the Three contact team, live chat is always available for your convenience from your device.

Easy Deliveries

They always offer free, next working day delivery on all new purchases when you join! Enjoy this offer on phones, tablets, and MiFi that are ordered before 4 PM for delivery to your billing address. If you upgraded your phone online or over the phone, your new device will be delivered on their chosen date, and you will be charged £4.99 on your next bill— make sure you use a Three discount code or one of our Three voucher codes to save on this fee! If you’re still unsure about making the switch, just read a Three network review to see why customers choose them as their #1 network provider.

FAQs with Three


How do you get the best discount at Three?

The best discounts, deals, and voucher codes can always be found right here at Quidco! You can also browse their exclusive customer offers page, join their mailing list for news about upcoming sales, and choose one of their plan bundles to cut down the cost of your next device!


Does Three do a student discount?

You don't have to sacrifice great cell service when you're on a tight student budget! With a valid academic ID, you can enjoy six months of service at half-price, as well as a free explorer backpack and wireless headphones. Just head to their website for more information on how to save!